CN102503320A - Decoration mortar with low efflorescence - Google Patents
Decoration mortar with low efflorescence Download PDFInfo
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- CN102503320A CN102503320A CN2011103253624A CN201110325362A CN102503320A CN 102503320 A CN102503320 A CN 102503320A CN 2011103253624 A CN2011103253624 A CN 2011103253624A CN 201110325362 A CN201110325362 A CN 201110325362A CN 102503320 A CN102503320 A CN 102503320A
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Abstract
The invention discloses decoration mortar with low efflorescence. The decoration mortar comprises the following components in percentage by weight: 10 to 25 percent of high-aluminum cement, 1.0 to 10 percent of styrene-acrylic latex powder, 0.5 to 1.7 percent of superfine aluminum silicate, 0.1 to 0.9 percent of organic silicon water repellent, 0.15 to 0.5 percent of cellulose ether, 0.1 to 0.4 percent of powder antifoaming agent, 0.1 to 3.0 percent of pigment and 60 to 80 percent of filler. The decoration mortar has the advantages of high water resistance and color retention property, no efflorescence phenomenon and the like, can keep the characteristics of clear texture and natural color sense, and is more environment-friendly and energy-saving, a three-dimensional protection body layer is formed through synergistic effects of the components in a prescription, the problems of a high water absorption rate, efflorescence, a low color retention property and the like of the traditional decoration mortar are radically solved, and mat coat protection treatment is not required to be performed additionally.
Description
Technical field
The present invention relates to a kind of decoration mortar of low accumulation of salt in the surface soil property, belong to chemical field.
Background technology
Decoration mortar is a kind of mortar as building facing, and it is added with a certain amount of mineral color, is when wiping one's face, to obtain special facing form through various processing treatment, to satisfy a kind of surface decoration of aesthetic needs.
The traditional decoration mortar is with a long history, is widely used, and it mainly is made up of ordinary Portland cement, filler, ether of cellulose auxiliary agent etc.Because contain a large amount of ordinary Portland cements in the traditional decoration mortar; And ordinary Portland cement itself has excellent cohesive strength, weather resistance and weathering resistance; Decoration mortar can also be mixed colours with mineral dye in addition; Decoration mortar after the toning can create colourful decorative effect through the various service tools of utilization, so decoration mortar is widely used in skin, and externally plinth course plays a very good protection and decorative effect.
The traditional decoration mortar be a kind of be main inorganic materials with the cement based, therefore also certainly exist the inherent shortcoming of cement-based material own, for example tensile strength low, be prone to the accumulation of salt in the surface soil, poor flexibility, be prone to produce problems such as shrinkability.
The traditional decoration mortar is as sticker with ordinary Portland cement; Because ordinary Portland cement alkalescence is strong; Can react when running into water and generate water soluble alkali (or salt) material; Salt in the decoration mortar is taken out of by water and is deposited in the decoration mortar surface, and materials such as the calcium hydroxide in the decoration mortar, sodium, potassium can be the carrier stripping with water also simultaneously.After arriving the decoration mortar surface, along with water evaporates, these materials can remain in the decoration mortar surface, form the white powder crystal; Perhaps, form white lump at the decoration mortar surface crystallization with the Carbon Dioxide in Air reaction.The decoration mortar accumulation of salt in the surface soil comes to this and forms, and the decoration mortar surface of white powder crystallization after toning had a strong impact on outer wall decorative effect.
In order to reduce the situation of the decoration mortar accumulation of salt in the surface soil, the consumption that often can provide the polymer dispersion powder of certain cohesive force to reduce ordinary Portland cement through adding in prescription, and the water tolerance of this decoration mortar largely is limited by the water-resistant capacity of latex powder.Yet the vinyl acetate-ethylene that tradition adopts can disperse rubber powder to have shortcomings such as poor water resistance, meets water and can partly melt, come off.Use vinyl acetate-ethylene can disperse the decoration mortar of rubber powder in exterior wall uses, can show the situation of poor durability.
The common problem of traditional decoration mortar another one is exactly that the decoration mortar water-intake rate is high.The traditional decoration mortar is because exist a large amount of ordinary Portland cements, and the degree of compactness of Portland cement is poor, has a large amount of kapillaries in the mortar, and water is transported to decoration mortar inside through kapillary.After traditional decoration mortar water-intake rate height can cause decoration mortar to receive the long-term invasion and attack of rainwater, decoration mortar was slow partially time of coagulation, can reduce the protection of decoration mortar to concrete base layer thus, and the decoration mortar weather resistance also can reduce simultaneously.
In addition, traditional decoration mortar color in life-time service can slowly shoal, turn white.Major cause has three aspects: the one, drench with rain for a long time with solar radiation pigment is slowly faded; The 2nd, the alkalescence of cement is high in the decoration mortar, pigment is produced corrode; The 3rd, move to mortar surface coverage pigment intrinsic colour because of the white crystal that the accumulation of salt in the surface soil produced, the decoration mortar color is shoaled.
For these reasons, the traditional decoration mortar receives certain restriction in the use of exterior wall.For this reason, need a kind of finishing mortar of improved formulations, to overcome the defective that the traditional decoration mortar exists.
Summary of the invention
The decoration mortar that the purpose of this invention is to provide a kind of low accumulation of salt in the surface soil property is to solve the problem of the existing water-intake rate height of traditional decoration mortar, the accumulation of salt in the surface soil, tint retention difference.
Technical solution of the present invention is: a kind of decoration mortar of low accumulation of salt in the surface soil property, and count by weight percentage and comprise following component:
High-alumina cement 10%～25%;
Phenylpropyl alcohol latex powder 1.0%～10%;
Superfine alumina silicate 0.5%～1.7%;
Organosilicon moisture repellent 0.1%～0.9%;
Ether of cellulose 0.15%～0.5%;
Powder skimmer 0.1%～0.4%;
Pigment 0.1%～3.0%;
Filler 60%～80%.
Described high-alumina cement is Al
2O
3The aluminate cement of content>=40% (mass ratio) belongs to inorganic cementitious material.High-alumina cement has that alkalescence is low, rate of set is fast, early strength is high, characteristics such as no calcium hydroxide generation after the aquation; The advantage that also possesses simultaneously traditional cement weather resistance and good weatherability; Be the good substitute of traditional portland, can significantly reduce the accumulation of salt in the surface soil situation of decoration mortar.
Described phenylpropyl alcohol latex powder is an organic binding material, is based on phenylethylene ethylene/propenoic acid ester copolymer and acrylate polymer emulsion, the redispersable latex powder of spray-dried technology preparation.This phenylpropyl alcohol latex powder has stronger viscosifying power and water resistance, can form the splendid paint film of water tolerance fast.
Described superfine alumina silicate is the pure aluminium silicate of particle diameter≤3 μ m, wherein Al
2O
3Content>=11% (mass ratio), SiO
2Content>=50% (mass ratio), Na
2O content＜1% (mass ratio).Superfine alumina silicate has slightly acidic, and its pH value is about 6.0, and a small amount of alkaline salt that high-alumina cement is produced in hydration reaction has certain mitigation, in decoration mortar, plays the effect of buffer reagent, can further reduce the possibility of the decoration mortar accumulation of salt in the surface soil.And in above-mentioned specification of quality, SiO
2Content improves, and the weathering resistance of prepared decoration mortar is better; And with Na
2The content of O is controlled at 1% once, can guarantee the slightly acidic of superfine alumina silicate.
Described organosilicon moisture repellent is the type siloxane organosilicon moisture repellent, wherein, and the content of siloxanes >=50% (mass ratio).This organosilicon moisture repellent is a kind of polymer, three-dimensional netted water-resisting agent; Can be combined in the mineral substrates surface through chemical bonded refractory; Form stable, ageing-resistant three-dimensional silica resin reticulated structure, this reticulated structure can not stop up kapillary attached to capillary wall, thereby forms not only hydrophobic but also gas-pervious characteristic; Can prevent rainwater intrusion decoration mortar, can not damage the venting capability of decoration mortar again.
Described ether of cellulose is a methylhydroxypropylcellulose ether.The adding ether of cellulose can strengthen the water-retentivity of decoration mortar, prevents too fast drying of decoration mortar and sclerosis rimose phenomenon, and can improve application property and the plasticity-that increases decoration mortar.
Described powder skimmer is a non-ionics, can carry out deaeration to the microvesicle that decoration mortar produces and handle in construction, improves the degree of compactness of decoration mortar, thereby obtains higher cohesive strength.
Further; It is 0.05%～0.1% mould inhibitor that decoration mortar of the present invention also is added with weight percent; Be used to suppress the mould that produces because of humid environment and algae etc.; Reducing the evil of soaking to the decoration mortar coating such as mould and algae, thereby effectively guarantee the ornamental and weather resistance of decoration mortar.
Compared with prior art, decoration mortar of the present invention has excellent in water resistance, good tint retention and advantages such as accumulation of salt in the surface soil phenomenon can not take place.
Decoration mortar of the present invention adopts the high-alumina cement of low alkalinity as sticker, and adds superfine alumina silicate as ealkaline buffer, can obviously reduce the alkalescence of decoration mortar; Through adding phenylpropyl alcohol latex powder and organosilicon moisture repellent; Can be at the inside and outside formation protective membrane of decoration mortar; On the basis of the venting capability that does not damage decoration mortar, improve its hydrophobic and water resistance, can effectively reduce rainwater to the invasion of decoration mortar and the formation of rainprint; Thereby also improved decoration mortar tint retention can, and increased decoration mortar weather resistance and the protection concrete base layer performance.In the decoration mortar prescription of the present invention; Has mutual synergy between each composition; Form three-dimensional protection body layer, fundamentally solved problems such as traditional decoration mortar water-intake rate height, the accumulation of salt in the surface soil, tint retention difference, need not the extra cover protection processing of doing; Can make decoration mortar keep clean mark, the natural speciality of color sensation, environmental protection and energy-conservation more.
Embodiment
Through specific embodiment the present invention is done further detailed explanation below.
Prescription according to table 1 takes by weighing each component respectively, each component is mixed promptly obtain decoration mortar of the present invention.
Table 1
| Raw material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| High-alumina cement | 16.0kg | 16.0kg | 13.0kg | 10.7kg | 10.7kg |
| The phenylpropyl alcohol latex powder | 2.0kg | 2.0kg | 2.3kg | 6.0kg | 10.0kg |
| Superfine alumina silicate | ------ | 1.0kg | 1.7kg | 1.5kg | 1.5kg |
| Organosilicon moisture repellent | ------ | ------ | 0.8kg | 1.2kg | 1.0kg |
| Ether of cellulose | 0.3kg | 0.3kg | 0.25kg | 0.2kg | 0.2kg |
| The powder skimmer | ------ | 0.2kg | 0.2kg | 0.2kg | 0.2kg |
| Iron oxide black (pigment) | 1.5kg | 1.5kg | 1.65kg | 1.5kg | 1.7kg |
| Mould inhibitor | ------ | 0.05kg | 0.1kg | 0.1kg | 0.1kg |
| Building stones (filler) | 80.2kg | 78.95kg | 80.0kg | 78.6kg | 74.6kg |
| Add up to | 100kg | 100kg | 100kg | 100kg | 100kg |
According to the standard-required of JC/T1024-2007 wall facing mortar, the decoration mortar that embodiment 1 to 5 is respectively made detects.The result is as shown in table 2:
Table 2
The accumulation of salt in the surface soil property of the decoration mortar of embodiment 2 has had more significantly than embodiment 1 to be improved, and the module thickness of being done descends, and cohesive strength rises, and the adding antagonism accumulation of salt in the surface soil property of superfine alumina silicate and powder skimmer has been described and has been improved cohesive strength helpful.
The decoration mortar of embodiment 3 is tested 5 moonsets out of doors and accumulation of salt in the surface soil phenomenon occurred.Through the adding of organosilicon moisture repellent, water regain decreases drastically, and has solved the accumulation of salt in the surface soil phenomenon of embodiment 1 with embodiment 2 existence simultaneously, and this also shows that water regain has certain influence to the accumulation of salt in the surface soil.
According to the test result of embodiment 4 and embodiment 5, can see the improve important influence of the addition of phenylpropyl alcohol latex powder to water-absorbent, accumulation of salt in the surface soil property and cohesive strength.
Above-listed detailed description is to the specifying of one of the present invention possible embodiments, and this embodiment is not in order to limiting claim of the present invention, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the claim of this case.
Claims (7)
1. the decoration mortar of a low accumulation of salt in the surface soil property, count by weight percentage and comprise following component:
High-alumina cement 10%～25%;
Phenylpropyl alcohol latex powder 1.0%～10%;
Superfine alumina silicate 0.5%～1.7%;
Organosilicon moisture repellent 0.1%～0.9%;
Ether of cellulose 0.15%～0.5%;
Powder skimmer 0.1%～0.4%;
Pigment 0.1%～3.0%;
Filler 60%～80%.
2. decoration mortar according to claim 1 is characterized in that: described high-alumina cement is Al
2O
3The aluminate cement of content>=40% (mass ratio).
3. decoration mortar according to claim 1 is characterized in that: described superfine alumina silicate is the pure aluminium silicate of particle diameter≤3 μ m, wherein Al
2O
3Content>=11% (mass ratio), SiO
2Content>=50% (mass ratio), Na
2O content＜1% (mass ratio).
4. decoration mortar according to claim 1 is characterized in that: described organosilicon moisture repellent is the type siloxane organosilicon moisture repellent, content of siloxane wherein >=50% (mass ratio).
5. decoration mortar according to claim 1 is characterized in that: described ether of cellulose is a methylhydroxypropylcellulose ether.
6. decoration mortar according to claim 1 is characterized in that: described powder skimmer is a non-ionics.
7. decoration mortar according to claim 1 is characterized in that: it is 0.05%～0.1% mould inhibitor that described decoration mortar also is added with weight percent.
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| CN 201110325362 CN102503320B (en) | 2011-10-24 | 2011-10-24 | Decoration mortar with low efflorescence |
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|---|---|---|---|
| CN 201110325362 CN102503320B (en) | 2011-10-24 | 2011-10-24 | Decoration mortar with low efflorescence |
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| CN102503320B CN102503320B (en) | 2013-06-19 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446234A (en) * | 2014-11-11 | 2015-03-25 | 黄美忠 | Alkali-efflorescence-free high-waterproofness dry-powder tile joint mixture |
| CN104529343A (en) * | 2014-12-10 | 2015-04-22 | 国家电网公司 | Gatepost decoration material |
| CN105967610A (en) * | 2016-05-13 | 2016-09-28 | 吴肖颜 | Rapidly-hardened colorful waterproof mortar |
| CN106747491A (en) * | 2016-11-24 | 2017-05-31 | 山东科技大学 | A kind of external-wall heat-insulation material and preparation method thereof |
| CN109384440A (en) * | 2018-12-29 | 2019-02-26 | 河南嘉方实业有限公司 | A kind of quick-dry type decoration mortar capable of releasing negative ion |
| CN109400055A (en) * | 2018-11-07 | 2019-03-01 | 华新水泥股份有限公司 | A kind of dew sand concrete Surface hardened layer material and preparation method thereof |
| CN113582630A (en) * | 2021-09-07 | 2021-11-02 | 河北金铎建设工程有限公司 | Thermal insulation wall body decorative layer dry material, mortar and wall body |
| CN114873969A (en) * | 2022-05-10 | 2022-08-09 | 北京建工资源循环利用投资有限公司 | Environment-friendly antique blue brick and production method thereof |
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| CN101519901A (en) * | 2009-03-16 | 2009-09-02 | 汕头经济特区龙湖科技有限公司 | External decorative mortar system and construction process thereof |
| CN101648797A (en) * | 2009-06-29 | 2010-02-17 | 上海东升新材料有限公司 | Self-leveling terrace powder mortar composite |
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2011
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| CN101519901A (en) * | 2009-03-16 | 2009-09-02 | 汕头经济特区龙湖科技有限公司 | External decorative mortar system and construction process thereof |
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Non-Patent Citations (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446234A (en) * | 2014-11-11 | 2015-03-25 | 黄美忠 | Alkali-efflorescence-free high-waterproofness dry-powder tile joint mixture |
| CN104529343A (en) * | 2014-12-10 | 2015-04-22 | 国家电网公司 | Gatepost decoration material |
| CN105967610A (en) * | 2016-05-13 | 2016-09-28 | 吴肖颜 | Rapidly-hardened colorful waterproof mortar |
| CN106747491A (en) * | 2016-11-24 | 2017-05-31 | 山东科技大学 | A kind of external-wall heat-insulation material and preparation method thereof |
| CN109400055A (en) * | 2018-11-07 | 2019-03-01 | 华新水泥股份有限公司 | A kind of dew sand concrete Surface hardened layer material and preparation method thereof |
| CN109384440A (en) * | 2018-12-29 | 2019-02-26 | 河南嘉方实业有限公司 | A kind of quick-dry type decoration mortar capable of releasing negative ion |
| CN113582630A (en) * | 2021-09-07 | 2021-11-02 | 河北金铎建设工程有限公司 | Thermal insulation wall body decorative layer dry material, mortar and wall body |
| CN113582630B (en) * | 2021-09-07 | 2022-05-27 | 河北金铎建设工程有限公司 | Thermal insulation wall body decorative layer dry material, mortar and wall body |
| CN114873969A (en) * | 2022-05-10 | 2022-08-09 | 北京建工资源循环利用投资有限公司 | Environment-friendly antique blue brick and production method thereof |
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|---|---|
| CN102503320B (en) | 2013-06-19 |
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